My partner has a temper. It is easier for me to just give in and pretend that everything is ok. Is this ultimately not healthy for me?
Going along with injustices that you clearly see as disruptive to your relationship and to you personally is not healthy. The resentment can lead to anxiety, psychological depression, and low self-esteem. I suggest that you forgive first and then from that position, ask something of your partner. If you point out your inner pain, then the partner may see the necessity for change. Of course, not everyone takes this cue that they have to change, but it is a good starting point to see if it works in your case.